Adafruit TCA9548A 1-to-8 I2C Multiplexer Breakout Board | 8-Channel I2C Expander Module

The Adafruit TCA9548A 1-to-8 I2C Multiplexer Breakout Board is a versatile module that allows a single microcontroller to communicate with up to eight I2C devices using the same I2C address. Built around the reliable TCA9548A I2C multiplexer IC, this breakout board is ideal for projects where multiple identical I2C sensors or modules need to operate on the same bus without address conflicts.

Compatible with Arduino, ESP32, ESP8266, Raspberry Pi, STM32, and other I2C-enabled development boards, this module is widely used in IoT, robotics, industrial automation, sensor networks, and embedded system applications.

Features

• Original TCA9548A I2C Multiplexer IC
• 1-to-8 I2C Channel Expansion
• Connect up to 8 I2C devices with identical addresses
• Eliminates I2C address conflicts
• Supports Standard and Fast I2C communication
• Wide operating voltage compatibility
• Compact breakout board design
• Easy integration with popular development boards
• Reliable and stable communication
• Ideal for sensor expansion projects

Specifications

• IC: TCA9548A
• Module Type: I2C Multiplexer Breakout Board
• Channels: 8 Independent I2C Channels
• Interface: I2C
• Operating Voltage: 3.3V – 5V
• Communication Protocol: I2C
• Compatible with Arduino, ESP32, ESP8266, Raspberry Pi, STM32 and other microcontrollers

Applications

• Multiple I2C Sensor Projects
• Arduino Development
• ESP32 & ESP8266 Projects
• Raspberry Pi Applications
• Robotics
• Smart Home Systems
• IoT Devices
• Environmental Monitoring
• Industrial Automation
• Embedded Systems
• Educational Electronics Projects

Package Includes

1 × Adafruit TCA9548A 1-to-8 I2C Multiplexer Breakout Board